Both the Land Rovers are indeed the 6x6 versions of the Perentie, which is unique to Australia. They are superficially similar to the Defender 110, but have a different chassis and cab which are wider, as well as Isuzu 3.9TD engines. There are a number of variants, ranging from the standard truck and ambulance to the LRPV (Long Range Patrol Vehicle) which has seen action in Afghanistan and Iraq.